I think I have found the real issue, it seems to be the interrupt starting the timer. I tried putting it on core0 again but that seems to add even more variation/delays No idea why, i checked the interrupt is correctly attached inbetween data packets.

if I am not mistaken, you put portENTER_CRITICAL_ISR where it should be portENTER_CRITICAL and vice versa I think portENTER_CRITICAL_ISR must be inside ISR, and portENTER_CRITICAL outside ISR Good catch, you're right. Sadly it made no difference. I also tried removing vtaskdelay on core0 and puttin...

A tip would be extremely appreciated, I keep trying things I can't figure this out.

Hello I've been making a program in the past weeks to act as a machine of several WS2811/2812 controllers in one (argb). So that i can pwm controller motors or non digital led strips (as one single led for each led data signal) I've got 95% of it figured out and working. I'm reading argb data using ...